公开(公告)号：US08995461B2

公开(公告)日：2015-03-31

申请号：US13363391

申请日：2012-02-01

Applicant: Shu Du ,  Anand G. Dabak ,  Xiaolin Lu ,  II Han Kim

Inventor： Shu Du ,  Anand G. Dabak ,  Xiaolin Lu ,  II Han Kim

IPC: H04B3/54 ,  H04L12/10

CPC classification number: H04B3/54 ,  H04B3/544 ,  H04B2203/5408 ,  H04B2203/5466 ,  H04B2203/5495 ,  H04L7/00 ,  H04L12/10 ,  H04L43/0823

Abstract: Systems and methods for channel selection in power line communications (PLC) are described. In some embodiments, a method may include defining a plurality of frames, each frame having a plurality of time slots. The method may also include assembling a pair of beacon and bandscan packets within each of time slot of each frame. The method may further include sequentially transmitting each of the frames over a corresponding one of a plurality of different frequency bands. In some implementations, each bandscan packet may include a slot index indicating a position of its time slot within its respective frame and/or a band index indicating one of the plurality of different frequency bands. In response to having transmitted the plurality of frames, the method may include receiving one or more packets indicating a selection of one or more of the plurality of different frequency bands to be used in subsequent communications.

Abstract translation: 描述了电力线通信（PLC）中通道选择的系统和方法。 在一些实施例中，方法可以包括定义多个帧，每个帧具有多个时隙。 该方法还可以包括在每帧的每个时隙内组合一对信标和带扫描分组。 该方法还可以包括在多个不同频带中的相应一个上顺序发送每个帧。 在一些实现中，每个带扫描分组可以包括指示其在其各自帧内的时隙的位置的时隙索引和/或指示多个不同频带之一的频带索引。 响应于已经发送了多个帧，该方法可以包括接收一个或多个分组，指示将在后续通信中使用的多个不同频带中的一个或多个的选择。